Welding apparatus



FIG. 1 is a front perspective view of the welding apparatus;

FIG. 2 is a rear perspective view of the welding apparatus;

FIG. 3 is a right side perspective view of the welding apparatus;

FIG. 4 is a left side perspective view of the welding apparatus;

FIG. 5 is a top view of the welding apparatus; and,

FIG. 6 is a bottom view of the welding apparatus. 

The ornamental design for a welding apparatus, as shown. 